I.of or pertaining to the autumn, autumnal: “aequinoctium autumnal, Varr. ap. Charis. l. l.: aequinoctium autumnale,” Varr. R. R. 1, 28 fin.; so Liv. 31, 47: “(aestuus) tumentes autumnali (aequinoctio) amplius quam verno,” Plin. 2, 97, 99, § 215: “tempus autumnale,” Varr. R. R. 1, 39, 1: lumen autumnale, * Cic. Arat. 285: “agnus,” Col. 7, 3, 11: “rosa,” Plin. 21, 4, 10, § 19: “imbres,” id. 19, 3, 13, § 37: “pruna,” Prop. 5, 2, 15: “corna autumnalia,” Ov. M. 8, 665, and 13, 816 et saep.
auctumnālis (correctly aut- ), e (old form autumnal , related as facul to facile, volup to volupe, famul to famulus, Varr. ap. Charis. p. 94), adj. auctumnus,